2/8/2023 3:34 PM | |
Joined: 9/28/2010 Last visit: 6/30/2024 Posts: 43 Rating: (8) |
Hello, see the attached picture, please (any idea, how to put the image directly into this text?). And yes, I do have the correct memory card size set in the Program Info (12 MB). The load memory is 92 % full. The Program Info->Resources in TIA says that 12MB memory card should be 64 % full. How is this huge difference possible? The CPU was reset to factory setting, the Memory card was formatted (in CPU, via TIA command in online & diagnostics). The complete project was compiled by Rebuild All before download. When I try to estimate the program size by this way: How do you estimate the memory requirements of your project in the load memory of a SIMATIC S7-1200/S7-1500? I get folder size about 11 MB, which is +/- the real (online) usage. So why does the Program Info -> Resources lies to me? And why so much?! TIA V16 Update 6, CPU S7-1515F-2 PN, 12 MB simatic memory card |
2/8/2023 4:44 PM | |
Joined: 7/7/2010 Last visit: 9/20/2024 Posts: 15213 Rating: (2417)
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The memory card includes a lot more than just the PLC project file. What is the load memory for your S7-1515F-2 PN, 750 KB (@ 92%), and 3MB data memory. Then there's the PLC firmware, some "pdf" data/files, some images, perhaps some GSD/GSDML files. A 12 MB memory card on an s7-1500 PLC is rather small. Virtually any real s7-1500 level project is going to fill that memory card beyond ~50% where you can download PLC program updates while online with the plc and not having to stop the plc every time you want to update the running logic (so it can have room on the PLC memory card for both the old and new PLC projects at the same time while it basically switches live between them).
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science guy |
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2/9/2023 6:31 AM | |
Joined: 3/11/2019 Last visit: 9/6/2024 Posts: 1569 Rating: (289)
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Hi JanJasek,
The answer is also in the FAQ you already posted. Program Info -> Resources/Memory Load, only the pure user program (software) is shown, but not hardware configuration, connection configuration.... From FAQ: "Note that the data listed below is also on the SIMATIC Memory Card in addition to the user program and that this data cannot be determined with "Memory load".
In addition to that, there are functions like datalogging or traces, which are creating files afterwards and these files are also stored in load memory. regards sancruz |
Feedback appreciated, please rate |
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